Analysis Overview
SHA256
146ff96668acfa0b36d30bab42321a2cdeccfa9714c8e1cc832741ff1d5c5d84
Threat Level: Known bad
The file Confirmation transfer MT103 copy Ref010102562.js was found to be: Known bad.
Malicious Activity Summary
AsyncRat
Vjw0rm
Async RAT payload
Executes dropped EXE
Blocklisted process makes network request
Checks computer location settings
Loads dropped DLL
Drops startup file
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Delays execution with timeout.exe
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-10 07:31
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-10 07:31
Reported
2022-10-10 07:33
Platform
win7-20220812-en
Max time kernel
130s
Max time network
143s
Command Line
Signatures
AsyncRat
Vjw0rm
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\logs.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nWINLmmfVH.js | C:\Windows\System32\wscript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nWINLmmfVH.js | C:\Windows\System32\wscript.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\logs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Confirmation transfer MT103 copy Ref010102562.js"
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\nWINLmmfVH.js"
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp494.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\logs.exe
"C:\Users\Admin\AppData\Roaming\logs.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | javaautorun.duia.ro | udp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| US | 8.8.8.8:53 | fresh02.ddns.net | udp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| US | 8.8.8.8:53 | fresh02.ddns.net | udp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
Files
memory/780-54-0x000007FEFBD01000-0x000007FEFBD03000-memory.dmp
memory/1200-55-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\nWINLmmfVH.js
| MD5 | 91e16cc28847b49a31fa84f5bb95d3e0 |
| SHA1 | 31cbfcc259966c020e0a6af48fe7ab3f1ed8746b |
| SHA256 | 068f05236ec0499de55e3875a94989f1cc3ce5091834a09752dc61a3fb447a19 |
| SHA512 | f02c263c1f1f6374b1ae9bb5767b8cf8f7c454e2912fb58ced14b9ce8bea5c8a4ec3e1eb48bdc9aae29b572fb723b9b377b458ea5c12b101c175e475cf93b41b |
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/2028-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/2028-61-0x0000000000D00000-0x0000000000D12000-memory.dmp
memory/2028-62-0x0000000076321000-0x0000000076323000-memory.dmp
memory/656-63-0x0000000000000000-mapping.dmp
memory/1180-64-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\tmp494.tmp.bat
| MD5 | 1e57cae89aaa7b9c0c2716041b87f6b8 |
| SHA1 | 8e9d8428af46cfcdb1f3ef30c4fcc0666cdea17a |
| SHA256 | 0ffec833ed67bc05ec7a298cab97fbed7b575f2e82e40b29be72dc74fa1d2b99 |
| SHA512 | 6b5a26c7968781a4fcdaeab50a64e0dd50ca57202858b7c014aa497dd709ce59e77d390458f301542a94b715ca52a37e26446fecd214a91b43d88b2d93259b9e |
memory/1016-66-0x0000000000000000-mapping.dmp
memory/1444-67-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\logs.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
\Users\Admin\AppData\Roaming\logs.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/1768-70-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\logs.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/1768-72-0x0000000000A10000-0x0000000000A22000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-10 07:31
Reported
2022-10-10 07:33
Platform
win10v2004-20220812-en
Max time kernel
143s
Max time network
151s
Command Line
Signatures
AsyncRat
Vjw0rm
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
| N/A | N/A | C:\Windows\System32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\logs.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nWINLmmfVH.js | C:\Windows\System32\wscript.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nWINLmmfVH.js | C:\Windows\System32\wscript.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\logs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Confirmation transfer MT103 copy Ref010102562.js"
C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\nWINLmmfVH.js"
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"' & exit
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp78FD.tmp.bat""
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"'
C:\Windows\SysWOW64\timeout.exe
timeout 3
C:\Users\Admin\AppData\Roaming\logs.exe
"C:\Users\Admin\AppData\Roaming\logs.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | javaautorun.duia.ro | udp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| US | 8.8.8.8:53 | fresh02.ddns.net | udp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| US | 93.184.220.29:80 | tcp | |
| US | 8.253.208.113:80 | tcp | |
| US | 8.253.208.113:80 | tcp | |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| US | 8.253.208.113:80 | tcp | |
| US | 8.253.208.113:80 | tcp | |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| NL | 104.80.225.205:443 | tcp | |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| US | 8.8.8.8:53 | fresh02.ddns.net | udp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
| JP | 156.146.35.171:5465 | javaautorun.duia.ro | tcp |
| VN | 103.74.101.124:2245 | fresh02.ddns.net | tcp |
Files
memory/3308-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\nWINLmmfVH.js
| MD5 | 91e16cc28847b49a31fa84f5bb95d3e0 |
| SHA1 | 31cbfcc259966c020e0a6af48fe7ab3f1ed8746b |
| SHA256 | 068f05236ec0499de55e3875a94989f1cc3ce5091834a09752dc61a3fb447a19 |
| SHA512 | f02c263c1f1f6374b1ae9bb5767b8cf8f7c454e2912fb58ced14b9ce8bea5c8a4ec3e1eb48bdc9aae29b572fb723b9b377b458ea5c12b101c175e475cf93b41b |
memory/1324-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
C:\Users\Admin\AppData\Local\Temp\AsyncClient02.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/1324-137-0x0000000000FF0000-0x0000000001002000-memory.dmp
memory/1324-138-0x0000000005AE0000-0x0000000005B7C000-memory.dmp
memory/340-139-0x0000000000000000-mapping.dmp
memory/100-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\tmp78FD.tmp.bat
| MD5 | 25ab5e2dc24bbc5c10de8b12930138e3 |
| SHA1 | 9a476643ba80ba94657b9aec5dac2331e88ffced |
| SHA256 | efc90d7df1e9d907851beebd4aea589c74f38ae47ee86975c69cb94187ee1bbb |
| SHA512 | 2d168828a7dde0f4b1fbb5310e88102e2f62f1667f0c89435b513742e7d612a8b8731b9854e525e84f62c265673c69a3ba1d1aa94432e6513ed1936d60702574 |
memory/3520-142-0x0000000000000000-mapping.dmp
memory/3512-143-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\logs.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |
memory/1276-144-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\logs.exe
| MD5 | 9e320f6163f8d53462d45fbebc282c64 |
| SHA1 | b2e0a591204581e78f0ae85ff42a7ca02542e2ae |
| SHA256 | 43356bfd3875d34f14405392208bc7f3c6f71d7fea011ab9acf922acc8c589c5 |
| SHA512 | 4c6d6a76f335d43b36866a0923ed8b6b685761ae61f3910b9c02df2fa60374fe3b6f53361e2d73ff3f5d0243e406aa337682d82c9f923dcf98f98345e727ad65 |